They are intentionally written as raw strings rather than strongly typed JSON so future ingestion tests can exercise the same path used for real imported text.

Current fixtures:

gmail_thread_example.txt Gmail-like thread with headers, quoted replies, task ownership, dates, and durable user/project facts.
notion_page_example.txt Notion-like project page with sections, bullet lists, decisions, owners, milestones, and operating notes.

Suggested test usage:

Load fixture text as a string.
Pass it through chunking and extraction.
Assert that ingestion can recover:
- entities such as people, tools, projects, and dates
- relations such as ownership, dependencies, and responsibilities
- durable memory facts such as preferences, deadlines, and decisions